Nailhead trans adapter

Discussion in 'Cars and Parts For Sale Leads' started by jmos4, Sep 30, 2020.

  1. jmos4

    jmos4 Well-Known Member

  2. Aussie V8

    Aussie V8 Well-Known Member

    I'd be all over that ---- but he's only taking cash and most likely won't ship. I sent an email anyway.
     
  3. Aussie V8

    Aussie V8 Well-Known Member

    Does any member live close to this town New Braunfels ?
     
  4. cobravii

    cobravii Well-Known Member

    What are you using to in? I had issues with one I had.
     
  5. Aussie V8

    Aussie V8 Well-Known Member

    401 in my hot rod project as in my Avatar picture. I bought a 401 / T400r4 used kit built by an unknown manufacturer, but was not happy with it. So I decided to have ago at making the adapter plate myself. It turned out OK I suppose but can't be 100% convinced until it's road tested which is still some time away. At least if I can get this then if my effort proved unsuccessful , then I'd have the Bendtsens as a back up.
     
  6. gs66

    gs66 Silver Level contributor

    I am interested in these too. What issues did you have and what do you recommend?
     
  7. Aussie V8

    Aussie V8 Well-Known Member

    I sent a second email but no reply. I don't even know if my emails went through ? Never used Craigslist before. Is it possible someone can send an email to him and enquire if it's still available please.
     
  8. 54Roadmasters

    54Roadmasters Active Member

    Sweet adapter. I called the number, no answer, left a message. Will try and handle getting it for you Aussie
     
  9. Aussie V8

    Aussie V8 Well-Known Member

    It's gone already :(
     
  10. NorCal.Buicknut

    NorCal.Buicknut Well-Known Member

  11. Aussie V8

    Aussie V8 Well-Known Member

    Yes I'm aware Russ Martin sells them -- same price as the manufacturer. At the time I couldn't afford the full price because of currency exchange, shipping, taxes. The $150 kit was a steal. I'll see how my set up goes once driveable. If not successful, may consider ? the Centerville 4l60e adaptor bellhousing -- but means I have to factor in getting another transmission.
    I'm always on the lookout for a bargain Bendtsens kit though, even if it's adapter plate only would suffice.
     
  12. Aussie V8

    Aussie V8 Well-Known Member

    Yes Larry --- aka cobravii, I'm interested also in your experiences with this type of adapter system.
     
  13. gsgeorge3

    gsgeorge3 Silver Level contributor

    I have one, boxed and ready to go.... 20181020_203158.jpg 20181020_203212.jpg
     
  14. cobravii

    cobravii Well-Known Member

    I was going to use this adapter in my '64 Electra with a 700R4 trans. I had the trans built, installed the adapter, shortened the driveshaft and had the whole driveline together BUT when I went to put the body back on I found that the adapter kit put the transmission too far back and would not clear the body without significant modifications to the floor and firewall. I sold it all and went with a 4L60E with a bell housing from Centerville....http://centervilleautorepair.com/transadaptors. It fit awesome and works very well. The performance advantages are really good too. First gear on a 4L60E is lower than a 700R4 and the 4L60E is electronic so I can customize shift point, firmness of shift and have a paddle shifter if I like. With 3:23 gears, 255/70r15 tires and this trans I cruise at 75 mph at approx 1600 rpm :)
     
    Aussie V8 and gsgeorge3 like this.
  15. Aussie V8

    Aussie V8 Well-Known Member

    George I'm not recognizing that adapter plate ? Any details on maker, where it was used etc.
    Larry, with the 4L60E trans / adapter , where did it sit in relation to the original trans eg. sat at same position or shorter ?
    Also, what effort has to go into the computer set up / wiring for these transmissions in older cars.
     
  16. gsgeorge3

    gsgeorge3 Silver Level contributor

    I have no info on it. I was told it was an adapter for a buick that could go either way, both nailhead and the later buick bellowing patterns. As you can see by where the starter would go on both sides but opposite direction. I got it with a parts lot from a guy who was a buick master tech in the 60s and 70s here in akron.
     
    Last edited: Oct 13, 2020
  17. Aussie V8

    Aussie V8 Well-Known Member

    I'm looking hard at the adapter George and can't be close to 100% certain there is a bolt pattern for a T700r4 or later 4L60E which are the only two options for me right now. Maybe someone else here can identify.
    I'll wait until Larry responds to the previous questions.
    Ken.
     
  18. gsgeorge3

    gsgeorge3 Silver Level contributor

    Ken,
    Yeah, I'm not sure if those would be on here either.
    George
     
  19. Aussie V8

    Aussie V8 Well-Known Member

    George , just as a pure guess I would say Nailhead > BOP trans ?
    Ken.
     
  20. gsgeorge3

    gsgeorge3 Silver Level contributor

    ken,
    exactly.
    george
     

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